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You may ink the part you want to have thinned with a marker to find out which angle is needed to abrade it, and go on till you almost reach the edge. The different scratch patterns should tell you.I would start at some 1.5cm from the edge.I use a strip of coarse sandpaper (beginning with P120 or so) on a stone, making edge trailing strokes.

Melampus

Post subject: Re: Thinning knife

Posted: Tue Sep 17, 2013 2:13 pm

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Joined: Wed May 16, 2012 10:42 amPosts: 3915Location: USA... mostly.

NORWAY <> 1c: Refer to answer 4a.

2c: You can, but you run the risk of altering the grind to a flat grind.

_________________Embracing the silence amid a life and land full of static...

norway

Post subject: Re: Thinning knife

Posted: Wed Sep 18, 2013 2:06 am

Joined: Tue Mar 05, 2013 7:47 amPosts: 82Location: Oslo Norway

Melampus wrote:NORWAY <> 1c: Refer to answer 4a.

2c: You can, but you run the risk of altering the grind to a flat grind.

So if I want to thin the whole bevel of my Artifex I do need a belt grinder since it is then more easy to make a more convex bevel?A very coarse stone will not do the trick (Bamboo 150-180#)

_________________I am from Norway so therefore bad english!!!

Paradox

Post subject: Re: Thinning knife

Posted: Wed Sep 18, 2013 10:25 am

Joined: Tue May 01, 2012 4:53 pmPosts: 333Location: Seattle, WA USA

I have thinned an Artifex 210 on stones. I used a DMT XXC and the Bamboo 150 for the major work. It did a fine job, but was a lot of work. Granted the one I did on my Kalamazoo machine was MUCH faster in getting done.

Melampus

Post subject: Re: Thinning knife

Posted: Wed Sep 18, 2013 1:53 pm

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Joined: Wed May 16, 2012 10:42 amPosts: 3915Location: USA... mostly.

NORWAY <> No where did I say it could not be done with stones. As Paradox states obviously, it's easier w/a grinder, but stones do the same thing. To convex on flat stones, you basically grind two angles and then roll them together. On a HanHan stone, the whole grind is a roll. These are obviously advanced sharpening techniques that you most likely aren't going to engage...

_________________Embracing the silence amid a life and land full of static...

norway

Post subject: Re: Thinning knife

Posted: Thu Sep 19, 2013 12:18 am

Joined: Tue Mar 05, 2013 7:47 amPosts: 82Location: Oslo Norway

Melampus wrote:NORWAY <> No where did I say it could not be done with stones. As Paradox states obviously, it's easier w/a grinder, but stones do the same thing. To convex on flat stones, you basically grind two angles and then roll them together. On a HanHan stone, the whole grind is a roll. These are obviously advanced sharpening techniques that you most likely aren't going to engage...

Sorry for my misunderstanding. But i have understood that reprofiling my Artifex without a belt grinder probably is to much work by hand:)But I can still practice on thinning the knife behind the edge.

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